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When to Plant Echinacea in Lee County, AR

Echinacea (purple coneflower) is a native prairie perennial valued for its immune-supporting properties and beautiful daisy-like flowers that attract pollinators.

Lee County, Arkansas is in USDA Zone 7b. The average last spring frost is March 19 and the first fall frost is November 9, giving you a growing season of approximately 235 days.

At an elevation of 1,408 feet, Lee County receives approximately 46.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88ยฐF, providing good warmth for Echinacea during the growing season.

Lee County, AR (Zone 7b) Long season
235 days
Last Spring Frost March 19
235 growing days
First Fall Frost November 9

Lee County Soil Profile

Soil Type

Silt Loam

Soil pH

5.6-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (6 days to spare)
Transplant: Mar 17 🍅 Harvest: Jul 21 – Oct 27
Recommended (50%) ✓ Fits season (4 days to spare)
Transplant: Mar 26 🍅 Harvest: Jul 30 – Nov 5
Safe Start (90%) ✓ Fits season (3 days to spare)
Transplant: Apr 16 🍅 Harvest: Aug 20 – Nov 26

Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.

Plant Water Budget

Plant needs
0.5″/week
Rainfall provides
0.8″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Echinacea needs ~2,400 GDD — county provides 3,760 GDD Excellent fit

Echinacea Planting Timeline โ€” Lee County, AR

Echinacea Planting Calendar

Activity When Date Range
Transplant Outdoors March 26 Mar 26 โ€“ Apr 9
Harvest July 30 Jul 30 โ€“ Nov 5

Plant 0.5" deep ยท 8" apart ยท Rows 12" apart

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March Transplant Outdoors
April Transplant Outdoors
May โ€”
June โ€”
July Harvest
August Harvest
September Harvest
October Harvest
November Harvest
December โ€”

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Low โ€” drought tolerant

Days to Maturity

120โ€“180 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 7b

Growing Season

235 days

Growing Tips for Lee County

Start seeds indoors 8-10 weeks before last frost or direct sow in fall for spring germination. Seeds need cold stratification. Deadhead to prolong blooming or leave seed heads for birds.

Companion Planting

Good Companions

Level Up Your Garden

Frequently Asked Questions

When should I plant Echinacea in Lee County, AR?

Lee County is in Zone 7b with an average last frost of March 19. Plan your Echinacea planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Lee County, AR?

Lee County, Arkansas is in USDA Hardiness Zone 7b. The average last spring frost is March 19 and first fall frost is November 9.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Lee County gardeners in Zone 7b organize planting dates, track what's growing, and never miss a planting window.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Lee County, AR. Local conditions may vary. Last updated: April 2026.